GB1372358A - Treatment of sewage or contaminated water - Google Patents
Treatment of sewage or contaminated waterInfo
- Publication number
- GB1372358A GB1372358A GB5540770A GB5540770A GB1372358A GB 1372358 A GB1372358 A GB 1372358A GB 5540770 A GB5540770 A GB 5540770A GB 5540770 A GB5540770 A GB 5540770A GB 1372358 A GB1372358 A GB 1372358A
- Authority
- GB
- United Kingdom
- Prior art keywords
- residue
- chromium
- chrome
- sewage
- coagulant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000010865 sewage Substances 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 7
- 239000000701 coagulant Substances 0.000 abstract 4
- 229910052804 chromium Inorganic materials 0.000 abstract 3
- 239000011651 chromium Substances 0.000 abstract 3
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 abstract 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 abstract 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 2
- 239000010802 sludge Substances 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000007900 aqueous suspension Substances 0.000 abstract 1
- 230000001580 bacterial effect Effects 0.000 abstract 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000292 calcium oxide Substances 0.000 abstract 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 1
- 150000001805 chlorine compounds Chemical class 0.000 abstract 1
- 239000000356 contaminant Substances 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 239000012895 dilution Substances 0.000 abstract 1
- 238000010790 dilution Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 239000003295 industrial effluent Substances 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 1
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 239000005416 organic matter Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
1372358 Chromium-containing coagulants ALBRIGHT & WILSON Ltd 12 Nov 1971 [20 Nov 1970] 55407/70 Headings C1A and C1C A coagulant for use in treating contaminated water is made by dissolving chrome residue wholly or partially in a strong mineral acid. "Chrome residue" refers to the residue left after the extraction of chromium from chrome ore. The residue consists principally of metal oxides, generally Fe2O3, Al2O3, MgO and Cr2O3. Generally the coagulants consist of the chlorides and/or sulphates of ferric iron, aluminium, trivalent chromium and magnesium, substantially free from hexavalent chromium. The coagulant can be used in the treatment of water, industrial effluents, sewage, sludge or other aqueous solutions or suspensions containing contaminants such as inorganic, bacterial or colloidal organic matter. In typical examples (4) dry chrome ore residue is refluxed with sulphuric acid and iron powder (to reduce any hexavalent chromium), calcium oxide is added and the solution is then filtered; (6) 5% solids sludge from domestic sanitary sewage is added to solution prepared as in (4), of different dilutions and the filterability is determined.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5540770A GB1372358A (en) | 1970-11-20 | 1970-11-20 | Treatment of sewage or contaminated water |
| US00199742A US3814686A (en) | 1970-11-20 | 1971-11-17 | Treatment of sewage or contaminated water |
| ZA717771A ZA717771B (en) | 1970-11-20 | 1971-11-18 | Treatment of sewage or contaminated water |
| DE19712157302 DE2157302A1 (en) | 1970-11-20 | 1971-11-18 | Process for the production of coagulants and use of the coagulants for waste water treatment |
| BE775545A BE775545A (en) | 1970-11-20 | 1971-11-19 | TREATMENT OF SEWER OR CONTAMINATED WATER |
| IT70793/71A IT942896B (en) | 1970-11-20 | 1971-11-19 | PROCEDURE AND COMPOSITION COAGU LANTE FOR THE TREATMENT OF CONTAMINATED WATER |
| CA128,199A CA972652A (en) | 1970-11-20 | 1971-11-22 | Treatment of sewage or contaminated water |
| NL7116026A NL7116026A (en) | 1970-11-20 | 1971-11-22 | |
| FR7141737A FR2120710A5 (en) | 1970-11-20 | 1971-11-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5540770A GB1372358A (en) | 1970-11-20 | 1970-11-20 | Treatment of sewage or contaminated water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1372358A true GB1372358A (en) | 1974-10-30 |
Family
ID=10473812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5540770A Expired GB1372358A (en) | 1970-11-20 | 1970-11-20 | Treatment of sewage or contaminated water |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3814686A (en) |
| BE (1) | BE775545A (en) |
| CA (1) | CA972652A (en) |
| DE (1) | DE2157302A1 (en) |
| FR (1) | FR2120710A5 (en) |
| GB (1) | GB1372358A (en) |
| IT (1) | IT942896B (en) |
| NL (1) | NL7116026A (en) |
| ZA (1) | ZA717771B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4519921A (en) * | 1983-08-11 | 1985-05-28 | Hydro Fuels, Inc. | Methods for removing pollutants from water and waste water and for reducing sludge resistance to dewatering |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3515341A1 (en) * | 1985-04-27 | 1986-10-30 | Kali-Chemie Ag, 3000 Hannover | METHOD FOR PRODUCING SOLID ALUMINUM CHLORIDE COMPOSITIONS |
| GB9321732D0 (en) * | 1993-10-21 | 1993-12-15 | Laporte Industries Ltd | Treatment of waste liquors |
| CN105692836B (en) * | 2016-03-21 | 2019-04-26 | 广西福斯特再生资源环保科技有限公司 | Organic and inorganic polymer composite flocculant and preparation method thereof |
-
1970
- 1970-11-20 GB GB5540770A patent/GB1372358A/en not_active Expired
-
1971
- 1971-11-17 US US00199742A patent/US3814686A/en not_active Expired - Lifetime
- 1971-11-18 DE DE19712157302 patent/DE2157302A1/en active Pending
- 1971-11-18 ZA ZA717771A patent/ZA717771B/en unknown
- 1971-11-19 BE BE775545A patent/BE775545A/en unknown
- 1971-11-19 IT IT70793/71A patent/IT942896B/en active
- 1971-11-22 FR FR7141737A patent/FR2120710A5/fr not_active Expired
- 1971-11-22 NL NL7116026A patent/NL7116026A/xx unknown
- 1971-11-22 CA CA128,199A patent/CA972652A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4519921A (en) * | 1983-08-11 | 1985-05-28 | Hydro Fuels, Inc. | Methods for removing pollutants from water and waste water and for reducing sludge resistance to dewatering |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA717771B (en) | 1972-08-30 |
| IT942896B (en) | 1973-04-02 |
| NL7116026A (en) | 1972-05-24 |
| FR2120710A5 (en) | 1972-08-18 |
| BE775545A (en) | 1972-03-16 |
| US3814686A (en) | 1974-06-04 |
| DE2157302A1 (en) | 1972-05-25 |
| CA972652A (en) | 1975-08-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| PCNP | Patent ceased through non-payment of renewal fee |